HuagongsheHuagongshe Chemistry Print Report · For research reference only
Acetic Anhydride → HCID 70601480, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Acetic Anhydride | HCID 7918 | — |
| Reactant | 2-[(Methylsulfinyl)methyl]-4H-1-benzopyran-4-one | HCID 12401702 | — |
| Product | HCID 70601480 | HCID 70601480 | 90% |
Reaction Steps
A solution of 2-[(methylsulfinyl)methyl]-4H-1-benzopyran-4-one (2.22 g, 0.01 m) in acetic anhydride (15 ml) was refluxed under nitrogen for 5 hours. The solvent was removed under reduced pressure to give a brown gum, which crystallized on standing. Recrystallization from methanol gave off-white crystals (2.36 g, 90%), m.p. 123°-125°.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04158663 |
| Source dataset | uspto-grants-1979_06 |
| ORD ID | ord-49a3a46da06f4f0cb7b71bff03846d13 |
| Source note | uspto-grants-1979_06 |